Practical benefits on space exploration a digest of papers presented at the United Nations Conference on the Exploration and Peaceful Uses of Outer Space, Vienna, 1968.
| Korporace: | , | 
|---|---|
| Médium: | Kniha | 
| Jazyk: | English | 
| Vydáno: | New York
          United Nations
    
        1969. | 
| Témata: |